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package bjc.rgens.parser;
import java.util.Map;
import java.util.Random;
/*
* The current state during generation.
*
*/
public class GenerationState {
/** The current string. */
public StringBuilder contents;
/** The RNG. */
public Random rnd;
/*
* @NOTE
*
* Once the planned refactor for importing rules happens, this will need
* to be changed.
*/
/** The current grammar. */
public RGrammar gram;
/** The rules of the grammar. */
public Map<String, Rule> rules;
/** The rules imported from other grammars. */
public Map<String, RGrammar> importRules;
/*
* @NOTE
*
* For planned features, this will need to be refactored.
*/
/** The current set of variables. */
public Map<String, String> vars;
/**
* Create a new generation state.
*
* @param cont
* The string being generated.
*
* @param rand
* The RNG to use.
*
* @param vs
* The variables to use.
*/
public GenerationState(StringBuilder cont, Random rand, Map<String, String> vs, RGrammar gram) {
contents = cont;
rnd = rand;
vars = vs;
this.gram = gram;
this.rules = gram.getRules();
this.importRules = gram.getImportRules();
}
public void swapGrammar(RGrammar gram) {
this.gram = gram;
rules = gram.getRules();
importRules = gram.getImportRules();
}
public GenerationState newBuf() {
return new GenerationState(new StringBuilder(), rnd, vars, gram);
}
}
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